Heating system.



PATENTED DEC. 31, 1907 s v. SHAROOD. HEATING SYSTEM. APPLICATION FILED MAR. 8,1906,

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UNITED STA ES PATENT oFFIe SAMUEL v. s'nAnoon, or BnocK'roN, MASSACHUSETTS, AssrcuoR OF ONE-HALF TO Lucius- R. (-HURCHILL, or BROCKTON, MASSACHUSETTS.

HEATING SYSTEM.

To all whom it may concern:

Be it known thatl, SAMUEL V. SHARooo,

a -citizen of the United States,- residing at Brockton, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Heat ing Systems; and I do declare the-following to be a full, clear, and exact description of the invention, such as will' enable othersuniform water line in the boiler of a vacuum heating system.

Another object is to provide in a single pump vacuum heating system, a uniform wato level in the boiler while the pump is const ntly o crating, the surplus water being by-passe to a storage tank to be used over again. vv A further object is to provide a governor of simple construction, which will be automatically operated when the water is low in the I boiler to pump water into the boiler until the required waterline has been attained and to then close a valve and by-pass the water to a storage tank..

These' and other objects are attained by means of the construction illustrated in the accompanying drawings, in which: Figure 1 is a diagrammatic view of an automatic vacuum heating system arranged in accordance with my invention; and Fig. 2 is a side view and partial section of the governor for controlling the boiler feed.

Referring to the drawings for a more partlcular description of my invention, 1 designates the boiler; 2 1.8 the .coi'nbmat-ion chamber havin a pipe 3 leading from its lower end into the boiler below the water line and apipe 4 extending from its upper end into the boiler above the water line. These pipes maybe provided with valves 5, 6. A pipe 7 couunupicates with the combination chamher 2, at a point corresponding substantially to the normal water line in the boiler, and is extended upward and connects with a'con' trollin chamber 8 disposed above the-upper end 0 the combination chamber and conne'oted with the boiler through pipe 9 which communicates with one branch'of pipe 3.

thermostat governor 10, consisting. of:

Specification of Letters Patent.

' Application tiled March 8, 1906. Serial No- 304.888;

- ter into the boiler.

two members 11, 12 having an intermediate- Patented meal, m7.

diaphragm 13 and clamped to ether by means of'face flanges 14 and suita le fastenings, is provided with 'a depending tube 15 closed at its bottom and opening at its upper end within the lower member 11 of the governor, said tube 15 extending into the controlling chamber 8. A'filling pipe 16 is connected to the tube 15,'and at its upper end said filling pipe is provided with a cap 17.

Resting upon the diaphra m '13 is a fol-. lower foot 18, the shank 19 0 which extends through a stuffin box 20 or other suitable bearing.- Extending upward from the governor .18 a support or bracket 21, through which a lever 22 extends, said lever 22 bein connected to the shank 19 of the follower an provided with a suitable wei ht 23 for prop erly balancing the same. pen the outer end of the lever 22 a chain or other suitable connection 25 extends to ayalve. 26 in a relief pipe 27 extending from-a water supply tank 28 to the pipe 29 which leads from the pump 30 to the boiler -1. The pipe 29 is pro-- main extends into the pump 30 and the return pipe 35 from the heating system is connected to the pipe 34.

The operation of the controller may be described as follows: The chamber 11 belowthe diaphragm 13 is filled with water through the tube 15 by removin the cap 17. When the water in the boiler Falls below the pipe 7 steam enters through pipe 4 and pipe 7 to the 4 controller chamber 8 and the steam heats the tube 15 and causes the water in the chamber 11 to expand-the diaphragm 13 and raise the follower and the lever '22 carrying'the chain 25 and closing the valve 26. The pump 30 then opens the check valve 31 and forces wa- The combination chamber 12 is connected at its bottom with the wa ter in the boiler and at the top with the steam in the boiler. It. will also be noted that the controller chamber 8 is placed above the water line. When the water in the boiler is below the chamber 2, steam enters the chamber 8 through pipe 7, and said water will condense the steam in the controller chamber and cause the diaphragm to fall and this will again open the valve 2 6 and close the check valve .31, automatically. When the check valve 31 is closed end the'valve 26 is open the 'wateris b'y-passed to the water supply tank-28.

' 5 om the foregoing; it will be obvious that my controller or governor is of comparatively simple construction and will operate auto- ,maticelly to maintain a. constant water level inthe' boiler in a. steam heating system.

10 Various cheng'es in the form, proportion the minor details of construction may be resorted to without departing from the prineiple or sacrificing an of the advantages of 3 this invention, as defined by the appended Having thus described my invention, what Item-Patent, is:' 'Ina'stean heating system, the combina- 4 20 tion with 9, pump,.& soli lce of water supply end a. boiler, of a combination chamber connected at one end by a valved pipe tothe I claim as new and desire'to secure by Let-.

normal water level of the boiler, a controller chamber with which said pipe communicates, a pipe leading from said controller chamber and connected with the pipe leerl'ingfiom the lower end of the combination chamber, a shell having a diaphragm therein, a closed pipe extending into-said controlier chamber and commnnicaiing with the slicllbelow said diaphragm, a l)y-'pass valve, and a follower resting on said diaphragm and connected to a lever ior opening the valve. I

In testimony whereof I have hereiinto set my hand in presence of tvv ubscribing Witnesses. 1

' SAMUEL V. SHAROOD. Witnesses:

C. HAROLD PORTER,

ELMER H. FLETCHER. 

